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Receiver adjustment between pilot bursts

  • US 8,098,767 B2
  • Filed: 12/20/2007
  • Issued: 01/17/2012
  • Est. Priority Date: 12/20/2007
  • Status: Active Grant
First Claim
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1. A method for operating a receiver in a wireless communication system, the method comprising:

  • receiving a frame including a plurality of time slots, each time slot of the plurality of time slots comprising two half-slots, each half-slot comprising two traffic segments and a pilot burst between the two traffic segments, wherein the plurality of time slots comprises a first half-slot and a second half-slot following the first half-slot, the first half-slot comprising a first pilot burst and a first traffic segment following the first pilot burst, the second half-slot comprising a second traffic segment and a second pilot burst following the second traffic segment;

    dividing the first and second traffic segments into a plurality of sub-segments, the plurality of sub-segments comprising a first sub-segment and a second sub-segment following the first sub-segment;

    training an equalizer of the receiver on the first pilot burst to obtain a first plurality of trained tap coefficients;

    training the equalizer of the receiver on the second pilot burst to obtain a second plurality of trained tap coefficients;

    interpolating between the first and the second pluralities of trained tap coefficients to obtain a first set of interpolated tap coefficients for the first sub-segment;

    measuring signal to interference and noise ratio of the first pilot burst to obtain a first measured SINR;

    measuring signal to interference and noise ratio of the second pilot burst to obtain a second measured SINR;

    interpolating between the first measured SINR and the second measured SINR to obtain a first interpolated SINR for the first sub-segment;

    equalizing the first sub-segment by using the first set of interpolated tap coefficients;

    scaling a result of equalizing the first sub-segment by the first interpolated SINR to obtain a first set of scaled data; and

    decoding the first sub-segment using the first set of scaled data.

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